
Metric Extra Thick Flat Washers – DIN 7349 are engineered for high-load connections. Compared to standard DIN 125A flat washers, these feature a larger outside diameter and a substantially thicker section to spread clamping force and resist embedment under heavy tightening.
Material/Finish: Zinc-plated steel.
Where DIN 7349 Washers Excel
- High clamp loads & shock/vibration: Helps prevent surface crushing and loss of preload.
- Oversized or slotted holes: Larger OD bridges wider clearances for better load spread.
- Reinforced joints: Ideal under bolt heads and nuts in structural brackets, fixtures, and machinery bases.
Why Choose Monster Bolts
- DIN-correct profiles: Reliable fit under metric bolts/nuts.
- Consistent plating: Quality zinc finish for general corrosion protection.
- Fast shipping & support: Stocked in the USA—questions? We’re here to help.
Need standard thickness instead? See Metric Flat Washers – DIN 125A. For all styles, visit the Metric Washers collection.